The Prime Minister’s Pledge After the Scottish Referendum to Give English Lawmakers More-Exclusive Say Over English Matters Sparks Outcry

LONDON—The U.K. government’s effort to transfer more powers to Scotland was enmeshed Tuesday in controversy over its plan to also give English lawmakers more control over England.

Prime Minister David Cameron’s Conservatives and the other main British political parties promised to deliver greater power over taxation and spending to Scotland, wooing voters on the eve of last month’s referendum. After Scottish voters chose to remain in...